Very easily this infection can pass from cat to cat.It is a good idea to keep the sick ones away from the others, otherwise you may never get rid of it.
I am bringing Felicity to the vet today, but I'm just wondering if anyone has ever noticed their cat breathing through its mouth, cause thats what she seems to be doing. I've never seen that before!
well that explains things then. I feel bad for her she looks so uncomfortable, but she is going to the vet today, so hopefully everything will be ok. Thanks for all your answers.